We were previously using Unity 5.5.3f1 with FMOD Unity plugin 1.09.07 without any issues. We actually exhibited our game at Gamescom last month, running our Mac/Win builds on several machines all day continuously for 4 days straight. However, after upgrading to Unity 5.6.2p4 our audio now becomes scratchy/static-y after ~1 hr of gameplay and increasingly cuts out until it’s almost inaudible after ~2 hrs of gameplay. I logged the cpu usage before exiting each scene and observed the dspusage and studiousage values increasing steadily over time. For example, here are some values I recorded after 2 hrs:

We’re a bit stumped at what the issue could be – no major changes to our project other than the Unity upgrade and we release every event that we create. Has anyone else experienced this behavior with Unity 5.6? Any suggestions/workarounds?